The Instagram profile picture instazoom has a size of 110 x 110 pixels. When you upload your profile picture to Instagram, you need to make sure it's that exact size to ensure the picture looks sharp and clear. Therefore, resize the image to the correct size before uploading.
There are various photo editing tools that you can use to improve the quality of your Instagram profile picture. Here are some tools you can try:
1. Adobe Photoshop: This tool allows you to crop the image to the optimal size and improve the image quality.
2. Canva: Canva is a free online tool that allows you to crop the image, change colors, and add text.
3. Pixlr: Pixlr is a free app that allows you to edit the image and improve the quality.